Piggyback --------- Board size: 25x16 mm^2 Technology: double layer with solder stop masks Minimum track/gap size: 0.15 mm (standard) Minimum drill diameter: 0.30 mm (standard) Material: FR4 1.6mm (standard) Finish: IS (immersion solder) Remarks: GERBER data for routing and solder stop bottom layers are NOT mirrored Minimum order quantity: 7